Malware analysis aa.dll_ Malicious activity | ANY.RUN

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File name:	aa.dll_
Full analysis:	https://app.any.run/tasks/90cbc89f-db21-4c7f-ba46-37ec0345e50b
Verdict:	Malicious activity
Analysis date:	February 21, 2019, 12:47:57
OS:	Windows 7 Professional Service Pack 1 (build: 7601, 32 bit)
Indicators:
MIME:	application/x-dosexec
File info:	PE32 executable (GUI) Intel 80386, for MS Windows
MD5:	390051C2DE84EE05B541EA8353F20930
SHA1:	CBAF0C4223533AB1CDE1C60D8DD55405EB7C5A7D
SHA256:	BDDCAE283EAE216D4CE4303C3DF08EAAB9F84D86486F373735EA9EDF07F19F5C
SSDEEP:	3072:ZNX/G61fmLoePGOemwesgJwSgnQ+YTPJ6MJgCPr5PMGF7BmPObX2HQzp8/:ZxGSA9Xe1OiBYTPvJ/PGYo

ANY.RUN is an interactive service which provides full access to the guest system. Information in this report could be distorted by user actions and is provided for user acknowledgement as it is. ANY.RUN does not guarantee maliciousness or safety of the content.

Launch configuration

Task duration:: 300 seconds
Heavy Evasion option:: off
Network geolocation:: off
Additional time used:: 240 seconds
MITM proxy:: off
Privacy:: Public submission
Fakenet option:: off
Route via Tor:: off
Autoconfirmation of UAC:: on
Network:: on

Software preset

Internet Explorer 8.0.7601.17514 undefined
Adobe Acrobat Reader DC MUI (15.023.20070)
Adobe Flash Player 26 ActiveX (26.0.0.131)
Adobe Flash Player 26 NPAPI (26.0.0.131)
Adobe Flash Player 26 PPAPI (26.0.0.131)
Adobe Refresh Manager (1.8.0)
CCleaner (5.35)
FileZilla Client 3.36.0 (3.36.0)
Google Chrome (68.0.3440.106)
Google Update Helper (1.3.33.17)
Java 8 Update 92 (8.0.920.14)
Java Auto Updater (2.8.92.14)
Microsoft .NET Framework 4.6.1 (4.6.01055)
Microsoft Office Access MUI (English) 2010 (14.0.6029.1000)
Microsoft Office Access Setup Metadata MUI (English) 2010 (14.0.6029.1000)
Microsoft Office Excel MUI (English) 2010 (14.0.6029.1000)
Microsoft Office OneNote MUI (English) 2010 (14.0.6029.1000)
Microsoft Office Outlook MUI (English) 2010 (14.0.6029.1000)
Microsoft Office PowerPoint MUI (English) 2010 (14.0.6029.1000)
Microsoft Office Professional 2010 (14.0.6029.1000)
Microsoft Office Proof (English) 2010 (14.0.6029.1000)
Microsoft Office Proof (French) 2010 (14.0.6029.1000)
Microsoft Office Proof (Spanish) 2010 (14.0.6029.1000)
Microsoft Office Proofing (English) 2010 (14.0.6029.1000)
Microsoft Office Publisher MUI (English) 2010 (14.0.6029.1000)
Microsoft Office Shared MUI (English) 2010 (14.0.6029.1000)
Microsoft Office Shared Setup Metadata MUI (English) 2010 (14.0.6029.1000)
Microsoft Office Single Image 2010 (14.0.6029.1000)
Microsoft Office Word MUI (English) 2010 (14.0.6029.1000)
Microsoft Visual C++ 2008 Redistributable - x86 9.0.30729.6161 (9.0.30729.6161)
Microsoft Visual C++ 2010 x86 Redistributable - 10.0.40219 (10.0.40219)
Microsoft Visual C++ 2013 Redistributable (x86) - 12.0.30501 (12.0.30501.0)
Microsoft Visual C++ 2013 x86 Additional Runtime - 12.0.21005 (12.0.21005)
Microsoft Visual C++ 2013 x86 Minimum Runtime - 12.0.21005 (12.0.21005)
Microsoft Visual C++ 2017 Redistributable (x86) - 14.15.26706 (14.15.26706.0)
Microsoft Visual C++ 2017 x86 Additional Runtime - 14.15.26706 (14.15.26706)
Microsoft Visual C++ 2017 x86 Minimum Runtime - 14.15.26706 (14.15.26706)
Mozilla Firefox 61.0.2 (x86 en-US) (61.0.2)
Notepad++ (32-bit x86) (7.5.1)
Opera 12.15 (12.15.1748)
Skype version 8.29 (8.29)
VLC media player (2.2.6)
WinRAR 5.60 (32-bit) (5.60.0)

Hotfixes

Client LanguagePack Package
Client Refresh LanguagePack Package
CodecPack Basic Package
Foundation Package
IE Troubleshooters Package
InternetExplorer Optional Package
KB2534111
KB2999226
KB976902
LocalPack AU Package
LocalPack CA Package
LocalPack GB Package
LocalPack US Package
LocalPack ZA Package
ProfessionalEdition
UltimateEdition

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MALICIOUS
- Loads the Task Scheduler COM API
  - svchost.exe (PID: 3724)
- Uses SVCHOST.EXE for hidden code execution
  - aa.dll_.exe (PID: 3624)
SUSPICIOUS
- Executable content was dropped or overwritten
  - svchost.exe (PID: 3724)
- Creates files in the program directory
  - svchost.exe (PID: 3724)
INFO
- Dropped object may contain Bitcoin addresses
  - svchost.exe (PID: 3724)

Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report

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No Malware configuration.

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TRiD

.exe	\|	Win32 Executable MS Visual C++ (generic) (42.2)
.exe	\|	Win64 Executable (generic) (37.3)
.dll	\|	Win32 Dynamic Link Library (generic) (8.8)
.exe	\|	Win32 Executable (generic) (6)
.exe	\|	Generic Win/DOS Executable (2.7)

EXIF

EXE

MachineType:	Intel 386 or later, and compatibles
TimeStamp:	2017:02:19 12:13:48+01:00
PEType:	PE32
LinkerVersion:	14
CodeSize:	129536
InitializedDataSize:	367104
UninitializedDataSize:	-
EntryPoint:	0x15d8f
OSVersion:	6
ImageVersion:	-
SubsystemVersion:	6
Subsystem:	Windows GUI
FileVersionNumber:	7.3.82.10
ProductVersionNumber:	7.3.82.10
FileFlagsMask:	0x0000
FileFlags:	(none)
FileOS:	Win32
ObjectFileType:	Executable application
FileSubtype:	-
LanguageCode:	English (U.S.)
CharacterSet:	Unknown (04E0)
CompanyName:	Warm_charge
FileDescription:	Caterpillar
InternalName:	Caterpillar
LegalCopyright:	Least
LegalTrademarks:	Word prepare Nothingnine must air
OriginalFileName:	branchwhether.exe
ProductName:	Caterpillar
ProductVersion:	7.3.82.10

Summary

Architecture:	IMAGE_FILE_MACHINE_I386
Subsystem:	IMAGE_SUBSYSTEM_WINDOWS_GUI
Compilation Date:	19-Feb-2017 11:13:48
Detected languages:	English - United States
Debug artifacts:	c:\Toward\Wish\Connect\summer\SteelWheel.pdb
CompanyName:	Warm_charge
FileDescription:	Caterpillar
InternalName:	Caterpillar
LegalCopyright:	Least
LegalTrademarks:	Word prepare Nothingnine must air
OriginalFilename:	branchwhether.exe
ProductName:	Caterpillar
ProductVersion:	7.3.82.10

DOS Header

Magic number:	MZ
Bytes on last page of file:	0x0090
Pages in file:	0x0003
Relocations:	0x0000
Size of header:	0x0004
Min extra paragraphs:	0x0000
Max extra paragraphs:	0xFFFF
Initial SS value:	0x0000
Initial SP value:	0x00B8
Checksum:	0x0000
Initial IP value:	0x0000
Initial CS value:	0x0000
Overlay number:	0x0000
OEM identifier:	0x0000
OEM information:	0x0000
Address of NE header:	0x000000F8

PE Headers

Signature:	PE
Machine:	IMAGE_FILE_MACHINE_I386
Number of sections:	6
Time date stamp:	19-Feb-2017 11:13:48
Pointer to Symbol Table:	0x00000000
Number of symbols:	0
Size of Optional Header:	0x00E0
Characteristics:	IMAGE_FILE_32BIT_MACHINE IMAGE_FILE_EXECUTABLE_IMAGE

Sections

Name	Virtual Address	Virtual Size	Raw Size	Charateristics	Entropy
.text	0x00001000	0x0001F857	0x0001FA00	IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ	6.39469
.rdata	0x00021000	0x000090B4	0x00009200	IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ	5.50978
.data	0x0002B000	0x0001004C	0x00000A00	IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE	2.02174
.gfids	0x0003C000	0x000000B4	0x00000200	IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ	1.8213
.rsrc	0x0003D000	0x0003EFD0	0x0003F000	IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ	3.40828
.reloc	0x0007C000	0x0000126C	0x00001400	IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_DISCARDABLE, IMAGE_SCN_MEM_READ	6.44723

Resources

Title	Entropy	Size	Codepage	Language	Type
1	4.79597	346	UNKNOWN	English - United States	RT_MANIFEST
2	2.22693	19496	UNKNOWN	English - United States	RT_ICON
3	2.63469	67624	UNKNOWN	English - United States	RT_ICON
4	3.28658	38056	UNKNOWN	English - United States	RT_ICON
5	3.23714	21640	UNKNOWN	English - United States	RT_ICON
6	2.84916	16936	UNKNOWN	English - United States	RT_ICON
7	3.64605	9640	UNKNOWN	English - United States	RT_ICON
8	3.59529	4264	UNKNOWN	English - United States	RT_ICON
9	4.30413	2440	UNKNOWN	English - United States	RT_ICON
10	4.36435	1128	UNKNOWN	English - United States	RT_ICON

Imports


ADVAPI32.dll
COMCTL32.dll
COMDLG32.dll
KERNEL32.dll
SHLWAPI.dll
USER32.dll
WINSPOOL.DRV
mscms.dll
ole32.dll

No data.

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All screenshots are available in the full report

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Total processes

31

Monitored processes

2

Malicious processes

1

Suspicious processes

0

Behavior graph

Click at the process to see the details

Process information

PID

CMD

Path

Indicators

Parent process

3624

"C:\Users\admin\AppData\Local\Temp\aa.dll_.exe"

C:\Users\admin\AppData\Local\Temp\aa.dll_.exe

—

explorer.exe

User:

admin

Integrity Level:

MEDIUM

Exit code:

0

Modules

Images
c:\users\admin\appdata\local\temp\aa.dll_.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\user32.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\lpk.dll
c:\windows\system32\usp10.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\winspool.drv

3724

C:\Windows\system32\svchost.exe

aa.dll_.exe

User:

admin

Company:

Microsoft Corporation

Integrity Level:

MEDIUM

Description:

Host Process for Windows Services

Exit code:

0

Version:

6.1.7600.16385 (win7_rtm.090713-1255)

Modules

Images
c:\windows\system32\svchost.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\secur32.dll
c:\windows\system32\sspicli.dll
c:\windows\system32\advapi32.dll

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Total events

0

Read events

0

Write events

0

Delete events

0

Modification events

No data

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Executable files

1

Suspicious files

0

Text files

0

Unknown types

0

Dropped files

PID	Process	Filename		Type
3724	svchost.exe	C:\ProgramData\{C654A916-CA16-4424-BE78-3EE7C63190B2}\wwjaykqgbjn.exe		executable
		MD5:—	SHA256:—

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HTTP(S) requests

0

TCP/UDP connections

0

DNS requests

0

Threats

0

HTTP requests

No HTTP requests

Download PCAP, analyze network streams, HTTP content and a lot more at the full report

Connections

No data

DNS requests

No data

Threats

No threats detected

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No debug info

General Info

aa.dll_

390051C2DE84EE05B541EA8353F20930

CBAF0C4223533AB1CDE1C60D8DD55405EB7C5A7D

BDDCAE283EAE216D4CE4303C3DF08EAAB9F84D86486F373735EA9EDF07F19F5C

3072:ZNX/G61fmLoePGOemwesgJwSgnQ+YTPJ6MJgCPr5PMGF7BmPObX2HQzp8/:ZxGSA9Xe1OiBYTPvJ/PGYo

Software environment set and analysis options

Launch configuration

Software preset

Hotfixes

Behavior activities

MALICIOUS

Loads the Task Scheduler COM API

Uses SVCHOST.EXE for hidden code execution

SUSPICIOUS

Executable content was dropped or overwritten

Creates files in the program directory

INFO

Dropped object may contain Bitcoin addresses

Malware configuration

Static information

TRiD

EXIF

EXE

Summary

DOS Header

PE Headers

Sections

Resources

Imports

Video and screenshots

Processes

Behavior graph

Specs description

Process information

Information

Modules

Information

Modules

Registry activity

Modification events

Files activity

Dropped files

Network activity

HTTP requests

Connections

DNS requests

Threats

Debug output strings